n = int(input())
if n in range(400, 600):
  print("8")
if n in range(600, 800):
  print("7")
if n in range(800, 1000):
  print("6")
if n in range(1000, 1200):
  print("5")
if n in range(1200, 1400):
  print("4")
if n in range(1400, 1600):
  print("3")
if n in range(1600, 1800):
  print("2")
if n in range(1800, 2000):
  print("1") n = int(input()) n int(input()) int input() input if n in range(400, 600):
  print("8") n in range(400, 600) n range(400, 600) range 400 600 print("8") print "8" if n in range(600, 800):
  print("7") n in range(600, 800) n range(600, 800) range 600 800 print("7") print "7" if n in range(800, 1000):
  print("6") n in range(800, 1000) n range(800, 1000) range 800 1000 print("6") print "6" if n in range(1000, 1200):
  print("5") n in range(1000, 1200) n range(1000, 1200) range 1000 1200 print("5") print "5" if n in range(1200, 1400):
  print("4") n in range(1200, 1400) n range(1200, 1400) range 1200 1400 print("4") print "4" if n in range(1400, 1600):
  print("3") n in range(1400, 1600) n range(1400, 1600) range 1400 1600 print("3") print "3" if n in range(1600, 1800):
  print("2") n in range(1600, 1800) n range(1600, 1800) range 1600 1800 print("2") print "2" if n in range(1800, 2000):
  print("1") n in range(1800, 2000) n range(1800, 2000) range 1800 2000 print("1") print "1" n = int(input()) int(input()) n
n = int(input())
if n in range(400, 600):
  print("8")
if n in range(600, 800):
  print("7")
if n in range(800, 1000):
  print("6")
if n in range(1000, 1200):
  print("5")
if n in range(1200, 1400):
  print("4")
if n in range(1400, 1600):
  print("3")
if n in range(1600, 1800):
  print("2")
if n in range(1800, 2000):
  print("1")
